President Donald Trump has issued a stark warning to Iran following reports that Tehran may block oil shipments through the Strait of Hormuz. The strategic waterway is vital to global energy supplies, connecting Persian Gulf producers to international markets.

The warning came shortly after Trump suggested the conflict with Iran might be nearing its end. The conflicting signals have left observers uncertain whether tensions are easing or building toward a new phase.

Trump posted on Truth Social on March 9, responding to Iranian statements claiming the strait was effectively closed. Iranian officials suggested ships attempting passage could be targeted, raising alarms across the energy sector.

The strait is a narrow passage between Iran and the Arabian Peninsula. Major oil exporters including Saudi Arabia, Iraq, Kuwait and the UAE depend on it, meaning any disruption would have worldwide economic consequences.

Global crude prices have already climbed above $110 per barrel amid the fears, reaching the highest levels in several years. Markets remain sensitive to any escalation affecting supply routes.

In his message, Trump warned of forceful retaliation if Iran interferes with shipping. He stated the U.S. would strike far more aggressively than before, potentially targeting infrastructure to weaken Iran’s ability to rebuild.

The warning follows joint U.S.-Israeli military strikes against Iranian targets, which triggered retaliatory missile and drone attacks. With oil prices rising and military tensions high, the coming weeks will determine whether the crisis de-escalates or expands into broader regional conflict.